Drying-room.



G. I. MORRISS.

DRYING ROOM.

APPLICATION FIL'ED DEC. 13. 1915.

1 2%,235. Patented Oct. 31,1916.

2 SHEETSSHEET 'l.

II I

ffi kfih/asge s: v 171126702497" G. I. MORRISS.

DRYING ROOM.

APPLICATION FILED DEC. 13. 1915.

Patented Oct. 31, 1916.

2 SHEETS-SHEET-Z 172,116 nib? ylj/idbny ss GRAY I. MORRISS, OF CHICAGO, ILLINGIS, ASSIGNOR T0 BELIANGE DRYING ROOM (30., OF CHICAGO, ILLINOIS, A CORPORATIUN 0F ILLINOIS.

DRYING-ROOM.

reeaeee.

Specification of Letters Patent.

Application filed December 13, 1915. Serial No. 66,526.

To all whom it may concern:

Be it known that I, GRAY I. Monuiss, a-

'ful Improvements in Drying-Rooms, of

which the following is a specification.

This invention relates to drying rooms of the type now commonly used for the purpose of drying varnish, enamel, or the hke.

The object of the invention is to simplify the means employed for maintaining currents of heated air through the drying room, with a view of rendering easy the installation of such structures in factories or similar buildings, and under diverse conditions.

Further objects of the invention will appear from a detailed description of the construction and combinations of parts hereinafter described and claimed.

In the drawings: Figure 1 is a perspective sectional view of the interior of the drying room embodying the features of the present invention; and Fig. 2 is a plan view of the same with the floor removed to show the piping arrangement for circulating the air.

The drying room is formed with exterior double walls 3 and a roof or ceiling 4, and inside of the room is located a. partitlon wall or screen 5, and is open at the top and bottom to afford communication between a heating chamber 6 and a drying chamber 7. Within the heating chamber is located a coil of pipes 8, or other heating means, and the inner corners of the structure are cut off by deflecting plates 99 which tend to turn the rising currents of heated air down into the drying chamber, and thus facilitate the circulation and recirculation of the heated air.

The circulation is induced and maintained by means of a power driven blower or fan 10 provided with a discharge pipe 11 leading to a point immediately below the heating coil Sand adapted to drive the currents of air upwardly through the heating chamberand in contact with the heating coils therein. The fan is preferably located below the floor level, and ordinarily may be hung or suspended from the ceiling of the room below that in which the drying room is installed which simplifies the problems of installation, although other arrangements may be made to suit particular conditions.

The blower is in communication with a lead of pipe 12 which, as shown, extends below the floor of the drying room and to the opposite side thereof, and is upturned into a wall recess 13 formed in the wall of the drying chamber opposite to the heating coils and at the floor level thereof. In order to provide for the ingress of fresh air, a. fresh air duct 14 is provided which communicates with the pipe 12, a damper 15 being provided to regulate the supply of fresh air. In like manner a damper 1G is suitably located in the pipe 12 to regulate the recirculation of air, the arrangement being one which permits the volume of fresh air and the volume of recirculated air to be proportionately regulated. This serves to regulate the amount of draft induced and maintained by the action of the blower.

In practice, the currents of air from the heating coils will pass up over the partition walls 5 and into the drying chamber,

through which they will naturally tend to.

descend by reason of the relative coolness of the drying chamber as compared with the heating chamber. culation is regulated and controlled and also increased by the action of the blower which positively maintains the circulation of the air up through the heating chamber anddown through the drying chamber. The ex tent of this circulation can be regulated by adjusting the dampers to admit the desired quantity of air to the blower. In this way the volume of fresh air as compared with the volume of recirculated air can be varied to meet the requirements of the articles to be dried, and also to maintain the most desirable conditions in the drying room during the various steps of the drying operation. Furthermore, the location of the fan and air pipes is such that they do not interfere with or occupy space otherwise available for drying purposes, with the result that the installation of the structure is rendered easy Patented @et. 31, 191%.

This slight natural cir-.

discharge outlet located in position to direct.

inclosing walls, an inner partition wall dividing the room into a" heating chamber and a drying chamber in communication with one another at the top andbottom of the -;partition wall, heating means in the heating chamber, a fan or blower having its discharge outlet located in position to direct the upward current of air into and through the heating chamber and against the heating means located therein, and a pipe connected with the blower and opening into the drying chamber at a point distant from the heating chamber and near the floor level of the drying room for conveying air-from the drying chamber to the blower, substantially as described.

3. In a drying room the combination of inclosing walls, an inner partition wall dividing the room into a heating chamber and a drying chamber in communication with one another at the top and bottom of the partition wall, heating means in the heating chamber, a fan or blower having its discharge outlet located in position to direct the upward current of air lnto and through the heating chamber and against the heating means located therein, a pipe connected with the blower and opening into the drying chamber at a point distant from the heating chamber and near the floor level of the drying room for conveying air from the drying chamber to the blower, and a fresh air inlet duct connected with said pipe for letting fresh air thereinto, substantially as described.

4. In a drying room the combination of inclosing walls, an inner partition wall dividing the room into a heating chamber and a drying chamber in communication with one another at the top and bottom of the partition wall, heating means in the heating chamber, a fan or blower having its discharge outlet located in position to direct the upward currentof air into and through the heating chamber and against the heating means located therein, a pipe connected with the blower and opening into the drying chamber at a point distant from the heating chamber and near the floor level of the drylng room for conveying air from the drying chamber to the blower, a fresh air inlet duct connected with said pipe for letting fresh air thereinto, and dampers in said pip'e and in. said duct, respectively, for permitting tition wall dividing the drying room into a regulation of the currents of air, substantially as described.

5. In a drying room the combination of exterior inclosing walls and an interior"parheating chamber and a drying chamber in communication with one another, heating means in the heating chamber, a fan or blower located in position to discharge currents of air upwardly into. the heating chamber from a' point below the heating means therein, and a pipe connected with the fan or blower and communicating with the lower part of the drying chamber at a point distant from the heating chamber for withdrawing currents of air therefrom and admitting them to the blower, substantially as described.

6. In a drying room the combination of exterior inclosing walls and an interior partition wall dividing the drying room into a heating chamber and a drying chamber in communication with one another, heating means in the heating chamber, a fan or blower located in position to discharge currents of air upwardly into the heating chamber from a point below the heating means therein, a pipe connected with the fan or blower and communicating with the lower part of the drying chamber at a point distant from the'heating chamber for withdrawing currents of air therefrom and admitting them to the blower and a damper in said pipe for regulating the passage of air therethrough, substantially as described.

7. In a drying room the combination of exterior inclosing walls and an interior partition wall dividing the drying room into a heating chamber and a drying chamber in communication with one another, heating 100 means in the heating chamber, a fan or blower located in position to discharge currents of air upwardly into the heating chamber from a point below the heating means therein, a pipe connected with the fan or blower and communicating with'the lower part of the drying chamber at a point distant from the heating chamber for withdrawing currents of air therefrom and admitting them to the blower, a damper in 11.0 said pipe for regulating the passage of air therethrough, a fresh air inlet duct con nected with said pipe for supplying fresh air thereto, and a damper for regulating the flow of freshair through said duct, substantially as described. GRAY I. MORRISS.

llvitnessesz FRANCES M. FRosT, JOHN A. Bonn. 

